The strategy is different for investors who also hold securities that have declined in value.

When the hedge fund foundered last fall, it held securities valued at $120 billion.

They would suddenly find themselves holding securities of uncertain value with no ready way of trading them.

Selling was also attributed to some investors who were holding more long-maturity securities than they wanted to ahead of today's employment report.

Other methods include statistically sampling the market and holding "representative" securities.

Shareholders in many other money market funds still don't know whether their funds held similar securities.

Those who held securities backed by these mortgages often got the bill.

Fund managers continue to hold securities with longer maturities in their portfolios without fear of interest rates rising.

Parking is when one party holds securities for another in an effort to hide the true ownership.

The practice of holding securities secretly through another entity in order to avoid restrictions or agreements is known as stock parking.